Let CTFE to handle partially uninitialized unions without marking the entire value as uninitialized.#94527

Merged

bors merged 3 commits intorust-lang:masterfrom oli-obk:undef_scalars

Apr 5, 2022

+467-334

Commits on Apr 5, 2022

Mark scalar layout unions so that backends that do not support partially initialized scalars can special case them.
oli-obk
committed
mir-interpret now treats unions as non-immediate, even if they have scalar layout, allowing partially initializing them
oli-obk
committed
Use WrappingRange::full instead of hand-rolling it
oli-obk
committed